public class Test {
    public static void main(String[] args) {
        int[] arr1 = new int[]{1, 2, 3, 0, 0, 0};
        int[] arr2 = new int[]{2, 5, 6};
        int m = 3;
        int n = 3;
        Solution solution = new Solution();
        solution.merge(arr1, m, arr2, n);
        
    }
}
